{"product_id":"custom-wiring-harness-service","title":"Custom Wiring Harness Service","description":"\u003cp\u003eThe S30Z electrical system is one of the most common pain points on these builds. Aging insulation, brittle connectors, and decades of questionable modifications add up fast. ZSM builds custom OEM-style wiring harnesses from scratch — designed specifically for the S30Z chassis and built to the standard the car deserves.\u003c\/p\u003e\n\u003cp\u003eEvery harness is hand-built in-house using quality wire, proper gauge sizing, and Deutsch connectors where applicable. We retain the OEM wiring architecture where it makes sense and improve it where it doesn't — the result is a harness that installs cleanly, functions reliably, and looks like it belongs in the car.\u003c\/p\u003e\n\u003ch3\u003eWhat We Build\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eFull chassis wiring harnesses\u003c\/li\u003e\n\u003cli\u003eEngine bay harnesses\u003c\/li\u003e\n\u003cli\u003eCustom sub-harnesses and extensions\u003c\/li\u003e\n\u003cli\u003eEFI conversion wiring\u003c\/li\u003e\n\u003cli\u003eLighting and accessory circuits\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eOur Process\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eConsultation to understand your build, modifications, and goals\u003c\/li\u003e\n\u003cli\u003eCustom design based on your specific chassis and components\u003c\/li\u003e\n\u003cli\u003eHand-built using quality wire, heat shrink, and proper connectors\u003c\/li\u003e\n\u003cli\u003eLabeled and documented for easy installation and future serviceability\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cem\u003eNote: Contact us to discuss your build and get a quote. Lead times vary based on complexity and build\u003c\/em\u003e\u003cbr\u003e\u003c\/p\u003e","brand":"ZSM Custom","offers":[{"title":"Default Title","offer_id":59139937796177,"sku":null,"price":0.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1020\/0868\/4625\/files\/Service-S30Z_Custom_OEM_Wiriing_Service_4.jpg?v=1783670858","url":"https:\/\/zsmcustom.com\/products\/custom-wiring-harness-service","provider":"ZSM Custom","version":"1.0","type":"link"}